diff --git a/scripts/cp_keep.sh b/scripts/cp_keep.sh
index a251b6b..33da455 100755
--- a/scripts/cp_keep.sh
+++ b/scripts/cp_keep.sh
@@ -7,61 +7,58 @@
 #
 # usage cp_keep.sh [src file] [dest folder] [prefix newfile]
 
-
-export IFS=$'\n';
-export src=$1;
-export dst=$2;
-export prefix=$3
+export IFS=$'\n'
+src=$1
+dst=$2
+prefix=$3
 
 if [ -z $1 ]; then {
-  echo "must specify source file";
-  exit;
-} fi
+    echo "must specify source file"
+    exit
+}; fi
 
 if [ -z $2 ]; then {
-  echo "must specify destination directory";
-  exit;
-} fi
-
+    echo "must specify destination directory"
+    exit
+}; fi
 
 if [ ! -d $2 ]; then {
-  echo "destination must be a directory";
-  exit;
-} fi
+    echo "destination must be a directory"
+    exit
+}; fi
 
 if [ -d $1 ]; then {
-  echo "$1 is directory.  .. quitting.";
-  exit;
-} fi
-
-export src_dir=$(dirname $src);
-export src_file=$(basename $src);
+    echo "$1 is directory.  .. quitting."
+    exit
+}; fi
 
+src_dir=$(dirname $src)
+src_file=$(basename $src)
 
 if [ "$dst" -ef "$src_dir" ]; then {
-  echo "source and destiation are same directory... quitting"
-  exit;
-} fi
-
-export fname_new=$prefix$src_file;
-
-count=1;
-while [ -e $dst/$fname_new ]; do {  #destination filename already taken?
-  #add suffix before any dot, if no dot just append
-  if [[ "$fname_new" =~ \. ]]; then {
-    fname_new=$(echo $fname_new | sed -e "s/\./_$count\./g");
-  } else {
-    fname_new=$fname_new"_$count"
-  } fi
-#  echo "filename already taken, suffix added: $dst/$fname_new"
-  count=$(($count+1));
-} done
+    echo "source and destiation are same directory... quitting"
+    exit
+}; fi
+
+export fname_new=$prefix$src_file
+
+count=1
+while [ -e $dst/$fname_new ]; do { #destination filename already taken?
+    #add suffix before any dot, if no dot just append
+    if [[ "$fname_new" =~ \. ]]; then {
+        fname_new=$(echo $fname_new | sed -e "s/\./_$count\./g")
+    }; else {
+        fname_new=$fname_new"_$count"
+    }; fi
+    #  echo "filename already taken, suffix added: $dst/$fname_new"
+    count=$(($count + 1))
+}; done
 
 if [ "$count" -gt 1 ]; then {
-  echo "$dst/$src_file already existed, new name: $fname_new";
-} fi
+    echo "$dst/$src_file already existed, new name: $fname_new"
+}; fi
 
-export cmd="cp \"$src_dir/$src_file\" \"$dst/$fname_new\"";
+export cmd="cp \"$src_dir/$src_file\" \"$dst/$fname_new\""
 
 #echo $cmd;
-eval $cmd;
+eval $cmd